In a large bowl, mix together the flour, cheese, eggs, canola oil, sugar, lemon zest, vanilla extract and a pinch of salt. Leave to rest for about 30 minutes.

Pour oil into a small, deep pot so it comes up about 7 cm.

Using a spoon, make small balls with the dough. Working in batches, drop them into the hot oil and fry until golden. Transfer to a wire rack or a paper-towel lined plate.

Top with powdered sugar and serve with strawberry jam, if you like.

Enjoy.